We are staying at Ssaw Hubin Jiefang Rd, how do we get to Liuhe He Ta then to Xianghu in Hangzhou?

From your hotel, you can take a taxi to reach Xihu Avenue to find the bus K8. Then you can take it to reach the tower directly.
From the tower, you can take K8 to reach Xihu Avenue and then take a taxi to reach the Wulin Square and then you can change to local subway line 1 to reach its terminal, Xianghu Station.